Steam-generator



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ALEXANDER J. COLLINGE, OF` INDEPENDENCE, IOWA.

STEAM-GEN ERATO R.

SPECIFICATION formingpart of Letters PatentNo. 232,459, dated September21, 1880.

Application led December 11, 1879. i

To all whom fit may concern:

Be it known that I, ALEXANDER J. GoL- LINGE, of Independence, in thecounty of Buchanan and State of Iowa, have invented certain new anduseful Improvements in Steam- Generators; and I do hereby declare thefollowing to be a'full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same', reference being had to the accompanying drawing,and to letters of reference marked thereon, which form a part of thisspecification.

The drawing represents the invention in vertical central section.

The re-pot A is formed with an annular` shoulder, a. The shell C, whichforms the boiler, tits over the shell B, which forms thecombustion-chamber, and forms the annular water-space b between thewalls of the two shells. These shell-walls are secured together at theirlower portions and rest on the shoulder of the ire-pot.-

A vertical flue, D, passes centrally through the boiler, and thus theproducts of combustion are caused to heat the Water in their egress fromthe generator. This flue, together with the water-jacket, aidsmaterially in heating the boiler-water. v

A conical damper, E, depends into the com- 1 bustion-chamber, and isadapted, by guides c and guide-rods d, secured respectively to the flueand damper, to maintain the latter in vertical position.

Arod, F, passes up through the flue and y connects thedamper with thelever G, which `latter is provided with serrations c on its under side.The lever works in a slot, f, formed `iu the top of the flue, and isadapted, by eugagement ot said serrations withV the lower wall of saidslot, to hold the lever against displacement. By operating this leverthe damper may be located any desired distance from the lower extremityot the tlue, and thus regulate the draft.

The products of combustion strike the conical side of the damper, andare thereby deliected radially outward to the sides ot' thecombustion-chamber. They are thereby directed toward the circumferenceof the boilerbottom, and after impact against the same they pass alongthe boiler-bottom to the cent-ral flue and :tlnd exit. In this way asstrong a draft as is desired may be obtained without causing the flameand heat to center toward the flue and escape without coming in contactwith the circumferential portion ot' the boilerbottom.

The boiler is supplied with water from a reservoir, H, formedindependent of the steamheater, and located at any suitable distancetherefrom. A water-pipe, K, connects the top of the reservoir with thewater-space b of the steam-heater.

A steam-conduit, L, connects the top ofthe boiler with the top of thetank, thereby Warming the water in the latter, and also equalizing thepressure in both tank and boiler.

Inasmuch as said water and steam pipes -constantly provide `freecommunication between the parts connected thereby, the boiler isautomatically supplied with water, the construction being adapted tocause the pressurev of steam generated within the boiler to force thewater in the reservoir out from its top, through the water-pipe, andinto the waterspace of the boiler.

The water-jacket which surrounds the combustion-chamber is provided witha gage, M, which indicates the height of the water in said jacket.

Steam is conducted from the boiler by pipe N to any point for use, asmay be desired.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a steam-generator, the combination, with the combustion-chambershell and the boiler-shell, connected together at their lower portions,said boiler-shell itting over the combustion-chamber shell and formingan annular water-space between their walls, oi'a tire-pot whose upperportion is provided with an annular shoulder, on which the connectedwalls ot' said shells loosely rest, substantially as set forth.

2. In a steamgenerator, the combination, with the Hue and the invertedconical damper,

provided with vertical guide-rods which tit in guide-openings formedwithin the flue, ot' the damper-connecting rod and the lever, which isloosely jointed to the latter, said lever work- IOO secured together andresting on the re-pot, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this29th day of November, 1879.

ALEXANQER J. ooLLINeE.

Witnesses FRANK B. WILLIAMS, WM. H. UREN.

